void ShowClassInfo_2021101();
void ShowClassInfo_2021102();
void ShowClassInfo_2021103();
void ShowClassInfo_2021104();
void ShowClassInfo_2021105();
void ShowClassInfo_2021106();
void ShowClassInfo_2023401();
void ShowClassInfo_2023402();
void ShowClassInfo_ai2021101();
void ShowClassInfo_ai2021102();
void ShowClassInfo_ai2021103();
void ShowClassInfo_ai2021104();

/* in this function call each class ShowClassInfo_2021102
*/
void ShowAllClasses()
{
    ShowClassInfo_2021101();
    ShowClassInfo_2021102();
    ShowClassInfo_2021103();
    ShowClassInfo_2021104();
    ShowClassInfo_2021105();
    ShowClassInfo_2021106();
    ShowClassInfo_2023401();
    ShowClassInfo_2023402();
    
    ShowClassInfo_ai2021101();
    ShowClassInfo_ai2021102();
    ShowClassInfo_ai2021103();
    ShowClassInfo_ai2021104();
}